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Basic and cationic dyes

Basic Yellow 5

Also known as 3,6-Diamino-2,7,10-trimethylacridinium chloride, 10-Methylacridinium Yellow, Aurophosphine G

CAS 6441-73-2Formula C16H18ClN3Molar mass 287.79 g/molEC 229-224-9
GHS signal word: Warning. Pictograms: Harmful or irritant
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Basic Yellow 5 chemical structure, C16H18ClN3, CAS 6441-73-2
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
6441-73-2
Formula
C16H18ClN3
Molar mass
287.79 g/mol
EC number
229-224-9
HS code
320413
Category
Basic and cationic dyes

What is Basic Yellow 5?

Plain description, key identifiers and synonyms

Basic Yellow 5 is a chemical substance with the molecular formula C16H18ClN3 and a molar mass of 287.79 g/mol. Its CAS registry number is 6441-73-2. The IUPAC name is 2,7,10-trimethylacridin-10-ium-3,6-diamine chloride.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2,7,10-trimethylacridin-10-ium-3,6-diamine chloride
CAS number
6441-73-2Other or deprecated CAS: 12768-83-1, 40451-58-9
EC numbers
229-224-9, 603-219-5
Molecular formula
C16H18ClN3
UNII
07BP340B4T
InChIKey
ADAOOVVYDLASGJ-UHFFFAOYSA-N
InChI
InChI=1S/C16H17N3.ClH/c1-9-4-11-6-12-5-10(2)14(18)8-16(12)19(3)15(11)7-13(9)17;/h4-8H,1-3H3,(H3,17,18);1H
SMILES (canonical and isomeric)
CC1=CC2=CC3=C(C=C(C(=C3)C)N)[N+](=C2C=C1N)C.[Cl-]

Synonyms

  • 3,6-Diamino-2,7,10-trimethylacridinium chloride
  • 10-Methylacridinium Yellow
  • Aurophosphine G
  • Corioflavine G
  • Flavophosphine R
  • Trisulfon cutch
  • Tertrodirect brown cab
  • 3,6-Diamino-2,7-dimethyl-10-methylacridinium chloride
  • C.i. basic yellow 5
  • C.I. 46035
  • Acridinium, 3,6-diamino-2,7,10-trimethyl-, chloride
  • CI 46035
  • Acridinium, 3,6-diamino-2,7,10-trimethyl-, chloride (1:1)
  • 2,7,10-trimethylacridin-10-ium-3,6-diamine, chloride
  • 3,6-diamino-2,7,10-trimethylacridin-10-ium chloride
  • Patent Phosphine G
  • Corioflavine R
  • Corioflavin GG
  • Corioflavine GGR
  • Aurophosphine 4G
  • C.I.Basic Yellow 5
  • Acridinium,6-diamino-2,7,10-trimethyl-, chloride

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
287.79 g/molcalc.
Exact mass
287.1189 Dacalc.
LogP (octanol/water)
-0.4calc.
Topological polar surface area
55.92 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
0calc.
Heavy atoms
20calc.
Rings
3calc.
Aromatic rings
3calc.
Fraction sp3 carbons
0.19calc.
Formal charge
0calc.
Stereocentres
0calc.
Components
2calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, c1ccc2nc3ccccc3cc2c1

c1ccc2nc3ccccc3cc2c1

3 rings, 14 atoms, the Acridine ring system.

1,068 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (16)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Basic Yellow 5 suppliers

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Basic Yellow 5 price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Industries and functions

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Basic Yellow 5 is traded under.

HS 3204.13Indicative HS code

Basic dyes and preparations based thereon

World exports in 2024
$209M
−2.6% vs 2023, imports $224M
2019 to 2024
Top exporters
  1. India * partner reported27.9%
  2. China21.8%
  3. Spain6.6%
Top importers
  1. United States11.2%
  2. China7.9%
  3. Germany7.4%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Basic Yellow 5 is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Basic Yellow 5, based on the data on this page

What is Basic Yellow 5?

Basic Yellow 5 is a chemical substance with the molecular formula C16H18ClN3 and a molar mass of 287.79 g/mol. Its CAS registry number is 6441-73-2. The IUPAC name is 2,7,10-trimethylacridin-10-ium-3,6-diamine chloride.

What is the CAS number of Basic Yellow 5?

The CAS registry number of Basic Yellow 5 is 6441-73-2. Other or deprecated CAS numbers: 12768-83-1, 40451-58-9.

What is the molecular formula and weight of Basic Yellow 5?

The molecular formula of Basic Yellow 5 is C16H18ClN3 and its molar mass is 287.79 g/mol.

What is Basic Yellow 5 used for?

Known uses and roles of Basic Yellow 5 include textile dyes in textiles and leather.

Is Basic Yellow 5 hazardous?

Basic Yellow 5 carries the GHS signal word "Warning". Main hazards: causes skin irritation, causes serious eye irritation, may cause respiratory irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Basic Yellow 5?

Basic Yellow 5 is usually classified under HS code 320413 (Basic dyes and preparations based thereon). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Basic Yellow 5?

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What is the price of Basic Yellow 5?

Suppliers quote Basic Yellow 5 on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Basic Yellow 5

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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